Behind the Name

Important achievements

Also tried to destroy the Desert Okami clan, but failed due them having been warned by Nami Okami.

Killed Mizu and later, Nami

Basically causes disaster everywhere

The legend of the Blood Kanji

When the nine tails demon (Akiro) kills a person, another blood kanji will appear on their skin and stain them with the blood of another living being forever. The kanji are the names of the people he killed. The legend says their souls will haunt the nine tails forever. When each of the nine tail's nine tails are covered in kanji, the ultimate nine tails demon will awaken. This demon has the power to destroy the entire space time curriculum.

The legend goes on to describe how five heroes, one for each of the elements (water, fire, wind, leaf, electric) will rise up against him but fail. However, they guide five new heroes, the reincarnations of themselves, into war against him. The legend ends there, giving no final outcome.

Past

Akiro was the leader of a special attack squad during a civil war long ago. He was proud of his position. However, he was getting extremely powerful- too powerful to control.

He accidentally destroyed part of his village in a fight with his commander over backing out of the war. Akiro wanted to keep fighting.

He was banished from the village. In an angry rage, he gave up his body to a demon- the nine tails. From then on, the real Akiro ceased to exist.